Oil-burner



0. l. ERICKSON.

OIL BURNER.

APPLICATION FILED M^R.25, 1920.

Patented Jan. 18, 1921.

www

y iff/- UNITEDA STATES.

iATENT OFFICE.

OSCAR J'. ERICKSON, OF PORTLAND, OREGON, ASSIGNOR OF ONE-HALF T0 WILLIAMA.

. WAGNER, OF PORTLAND, OREGONv OIL-BURNER.

Specification of Letters Patent. Patented al1. 18, 1921.

Application filed March 25, 1920. Serial No. 368,786.

To all whom 'it may concern: Y

Be it known that I, OSCAR J. ERICKSON, a citizen of the United States,and resident of Portland, county of Multnomah, State of Oregon, haveinvented a new and useful Improvement in Oil-Burners, of which thefollowing is a specification.

This inventionrelates to oil burners and hasV particularly to do withburner-heads adapted for properly mixing the oil vapors and gases withair, and spreading the resultant flame so as to obtain a high eliiciencyfrom the fuel.

The main objects of this invention are: first: to provide a burner-headof the character mentioned in which the fuel will be fully vaporizedVand gasified by the flame emitted from the burner; second: to providean efficient chamber in which the vaporized and gasified oil will expandand develop a Vpressure head; third: to provide a mixing chamber inwhich the gas and vapors will be properly mixed with air; fourth: toprovide a flame deflector which will spread the llame, so as to producea high heating eificiency, and fifth: to combine the whole device in acompact form,` economical in first cost, and simple in operation.

My Vdevice by which I accomplish these objects is fully shown in theaccompanyingdrawings, in which,

Figure 1 is a front elevation of my Fig. 2 is a side elevation of thesame;

Fig. 3 is a section on the line 3-3'of Fig.'

2, and l Fig. 4 is a section on the line 4 4 of Fig. 1.

My burner-head comprises a one-piece hollow casting, approximately ofthe form kof an inverted U, of which a is the bottom integral with thesides of the body is formed with an open-ended cylindrical mixingchamber f, having a central duct g; the

ends of saidfmixing chamber being spaced from the top and the bottom ofsaid body.

The bottom a of the body is made with a lug 7L, tapped to receive anipple c'. Said lug is provided with a central hole necting with theduct d.

c is an elbow, and l a pipe connecting the j conburner-head with the oilsupply tank, (not shown).

`The bottom of the burner-head is made with angular cross-section, withthe vertex in alinement with the center of the opposed open end of themixino' chamber, thereby providing inclined surfaces as m, see Figs. 2and 4, which act as ballles to deflect the flame emitted from theburner.

In the'top of the burner-head is a cleanout hole closed by a pipe-plugn, and 0 is an orifice connecting the duct d with the atmosphere. Saidorifice is in axial alinement with the mixing chamber f.

The operation of my burner-head is as follows:

Oil fed into the burner-head flows directly into the duct d.Vaporization and gasifying of the fuel will take place in this duct, andthe pressure developed, will cause the jet of gas and vapor to `jump thegap between the orifice o and the mixing chamber f, entering the lattervand drawing with it the air required for converting the gas into ahighly combustible mixture. This mixture will burn at the lower end ofthe mixing chamber g, and the resulting llame will impinge directly onvthe deflector faces m, which will serve to deflect the flame outwardlyand back approximately as indicated by the broken line arrows m, inFigs. 2 and 4, thereby causing the flame to completely envelop theburner-head intensely heating the latter and promoting efficientvaporizing .and gasifying of the fuel.

I claim:

' A burner-head comprising a hollow body or casting in the form of aninverted U, the extremities of the legs of which are connected by atransverse base, a tubular openended mixing chamber parallel with andcentral of the legs of said U body, the hollow of the body providing afuel passage way having Van outlet axially located with respect to saidmixing chamber, the ends of the latter being spaced from the top andbottom of said body, the base of the burner head being adapted forconnecting to a fuel supply, the surface of the base opposed to one endof the mixing chamber, having inclined sides the vertex of which isalined with the center of the opposed open end of said mixing chamber,whereby the llame is reflected so as to envelop the burner-head.

OSCAR J. ERICKSON.

